Fountain-syringe or other cap.



No. 657,570. Patented Sept. Il, |900. G. H. F. SCHRADER.

FDUNTAIN SYRINE'E 0B OTHER 0A?.

(Applimion 'fusa Feb. 5,1998.)

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INVENTOR; 6.

' By /u's Afforneys.

VQTNESSES': A

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UNITED STATES PATENT OFFICE.

GEORGE I-l. F. SOHPtADER, OF NEW YORK, N. Y.

FOUNTAIN-SYRINGE R OTHER GAP- s'PEcIiieAc/rion remi-ng 'part of Letters Patent No. 657,570, dated september 11, 1900.

` Applicatiolnled February 5, 189B. Serial No. 669,202.. (Nomodel.)

To all whom may concern,.- y

Be it known that LGEORGE SCHRA- DER, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Fountain- Syringes or other Caps, of which the following is a specification.

This invention relates to caps and Stoppers.

The invention is especially applicable to water-bottle and fountain-syringe caps and such like devices, as pneumatic and other` valve caps or Stoppers. These caps are usu.- ally made either with a female screw-thread for screwing over the eXteriorly-threaded end of a neck or valve-body or with a male thread for screwing into the internal thread of a neck or body, the neck or body being generally molded in a water-bottle or otherwise fastened to a vessel or tire. The cap closes the neck with a leak-tight joint, and when constructed as a fountain-syringe cap it `is provided with a tubular nipple for receiving the soV end of a syringe-tube and an internal con-` duit for affording communication between the bag or reservoir and the tube. Such caps have heretofore been cast in order to provide the projecting nipple and have been formed with an annular burred or roughened portion for grasping them to screw the cap on or off. My present invention provides an improved shape for the cap, an improved construction of cap, and an improved method of forming caps.

In carrying out the preferred form of my invention I provide a cap having a hollow projection rising from its top outwardly and having a iiatteued side or sides by which its outer end may be used as a grasping portion for the fingers for screwing the capon or 0E or when inverted may be inserted in the notch of any screw which will receive it and can then be used as an engaging portion or screwdriver, preferably forming this projection cylindrical, with concave parallel iiattened portions on opposite sides at its outer end, and with an abrupt rectangular end substantially at right angles to its axis, and preferably I form a nipple on this end for receiving the hose. The improved cap is preferably constructed of a single piece of drawn, spun, or stamped sheet metal, and the improved process preferably consists in distorttion of the cap alone.

male cap.

ing a sheet of metal into a tubular nipple, a substantially-flat end at the base of the nipple, a cylindrical part at said end bending inwardly, the opposite walls of said cylindrical part near said end forming a large cylindrical wall' surrounding said top, contracting the metal into a smaller cylindrical wall beneath said top, forming a screw thread on such smaller wall and rougheningsuch larger wall. Referring to the accompanying drawings, I will describe my improvements as applied to a fountain-syringe cap.

In the drawings, Figure l is a fragmentary axial section of a fountain-syringe bag or reservoir and tube, showing the preferred forni of my improved cap. Fig. 2 is a side eleva- Fig. 3 is a side elevation thereof looking at right angles to Fig. l. Fig. l is a plan viewthereof; and Fig. 5 is an axial section similar to Fig. 1, but showing a Referring to the drawings, let A indicate a f vessel, such as the bag or reservoir of a fountain-syringe; B, a screw-threaded body, such as the neck of the vessel A; C, a cap screwing on the body B, and D a syringe-tube.

These parts may be of any usual or suitable construction and operation, the body B being molded or otherwise fastened to the vessel A and having either an externalshoulder a, screw-thread b, and bearing c, as shown in Fig. l, or an internal shoulder a', screwthread b', and external bearing c', as shown in Fig. 5, where the body is lettered B', and the cap having either an internal screwthread d for engaging the thread b of the body, as shown in Fig. l, or an external `thread d for engagingV the thread b', as shown in Fig. 2. The cap commonly has a contracted body E, on which its screw-thread is formed, an enlargementF above this body, within which is a chamber P for a packing-ring G, a top H eX- `tending inwardly from this enlargement over the packing-ring G and pressing the latter against the bearing c to make a tight joint, a nippleI projecting from the top H, over which nipple the tube D is sprung and on which it is frictionally held by a head e, formed on the end of the nipple, and a tubular conduit J extending through the nipple and cap to afford communication from the vessel to the tube. These parts are similar in construction and esatto In caps for fountain-syringes and other devices, a cap formed of a single integral piece of sheet metal having a hollow contracted and screw-threaded lower end, a bulging top above and of greater diameter thn such end, and a hollow cylindrical projection on said top having its walls bent to form a flattened portion.

4. In caps for fountain-syringes and` other devices, a cap having a screw-threaded end for screwing to a body, a top, and a hollow projection above said 'rop having a flattened portion, the greatest diameter of said flatk:tened portion being'less thanV that of said screw-threaded end, and an under face above said screw-threaded end for pressing a washer against said body.

5. In caps for fountain-syringes and other devices, a cap formed of sheet metal, having a screw-threaded end for screwing on a body, a top, and a hollow projection above said top, and a washer-chamber within said top, having upper and lower Walls.

In caps for fountain-syringes and other devices, a cap having a contractedrand screwthreaded lower end, a bulging top above and of greater diameter than such en d, a cylindrical portion having flattened sides, and a transverse end wall formed of a sheet of pressed metal.

7. In caps for fountain-syringes and other devices, a cap having a contracted and screwthreaded lower end, a bulging top above and of greater diameter than such end, a tubular portion having flattened sides, and a transverse end wall, and a nipple on said wall'.

8. In caps for vessels, a cap having an internally screw-threaded and contracted lower end, a top above said end, and of greater internal diameter than the latter, a washerchamber within said top, and a hollow projec- `tion above said top, all formed of a single piece of pressed sheet metal.

9. In caps for vessels and other devices, a cap having a hollow lower end and an internal screw-thread therein, a top above said end constituting the top of the screw-threaded socket therein, andra relatively-smallhol# low projection above and centrally of said `top having at its upper end a transverse wall.

GEORGE II. F. SCI-IRADER.

Witnesses:

GEORGE H. FRASER, VTHOMAS F. WALLACE. 

